/*-------------------------------------------------------------------------
 * Copyright (C) 2000 Caldera Systems, Inc
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *    Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 *    Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 *    Neither the name of Caldera Systems nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * `AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE CALDERA
 * SYSTEMS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;  LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *-------------------------------------------------------------------------*/

#if(!defined LINKEDLIST_H_INCLUDED)
#define LINKEDLIST_H_INCLUDED


/*=========================================================================*/
typedef struct _SLPListItem
/*=========================================================================*/
{
    struct _SLPListItem*    previous;
    struct _SLPListItem*    next;
    
}SLPListItem;


/*=========================================================================*/
typedef struct _SLPList
/*=========================================================================*/
{
    SLPListItem* head;
    SLPListItem* tail;
    int          count;
}SLPList;


/*=========================================================================*/
SLPListItem* SLPListUnlink(SLPList* list, SLPListItem* item);
/* Unlinks the specified item from the specified list.                     */
/*                                                                         */
/* list     (IN) pointer to the list to unlink the item from               */
/*                                                                         */
/* item     (IN) item to be removed from the list                          */
/*                                                                         */
/* Returns  pointer to the unlinked item                                   */
/*=========================================================================*/


/*=========================================================================*/
SLPListItem* SLPListLinkHead(SLPList* list, SLPListItem* item);
/* Links the specified item to the head of the specified list.             */
/*                                                                         */
/* list     (IN) pointer to the list to link to                            */
/*                                                                         */
/* item     (IN) item to be linkedto the list                              */
/*                                                                         */
/* Returns  pointer to the linked item                                     */
/*=========================================================================*/


/*=========================================================================*/
SLPListItem* SLPListLinkTail(SLPList* list, SLPListItem* item);
/* Links the specified item to the tail of the specified list.             */
/*                                                                         */
/* list     (IN) pointer to the list to link to                            */
/*                                                                         */
/* item     (IN) item to be linkedto the list                              */
/*                                                                         */
/* Returns  pointer to the linked item                                     */
/*=========================================================================*/

#endif
